Daphne Sheldrick, a Kenyan wildlife conservationist who helped nurse, bathe and occasionally apply sunscreen to more than 230 orphaned elephants, and whose decades of work on their behalf made her one of the world’s foremost champions of a creature she described as a “human animal,” died April 12 in Nairobi. She was 83. The cause was breast cancer, her daughter Angela Sheldrick said in a statement from the David Sheldrick Wildlife Trust. Ms. Sheldrick created the organization in 1977 and named it for her husband, who had died earlier that year and was the founding warden of Kenya’s largest national park. Before...